91116591 ÷ 99 
We want to figure out the number of times 91116591 can be divided by 99.

On to step 1:
9 divided by 99 is 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 99

Let's proceed to step 2:
99 goes into 91 0 times with a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Bring next digit (1) of the dividend behind the 91 and repeat the process: 911 / 99

Moving on to step 3:
The number 99 fits into 911 9 times, leaving a remainder of 20.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Deduct 891 from 911 and we're left with 20.
Grab the next digit (1) from the dividend, add it to 20, then carry on: 201 / 99

Going ahead to step 4:
If we divide 201 by 99, we get 2 and a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 92.0
Deduct 198 from 201 and we're left with 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 99

Moving on to step 5:
The number 99 fits into 36 0 times, leaving a remainder of 36.
Record the quotient 0 as the next digit in the result. 
Result so far: 920.0
The remainder is 36 after subtracting 0 from 36.
Include the next digit (5) from the dividend after 36, then repeat: 365 / 99

On to step 6:
99 can be fit into 365 3 times, resulting in a remainder of 68.
Write down 3 as next digit of the result. 
Result so far: 9203.0
Subtracting 297 from 365 leaves us with 68.
Take the next digit (9) from the dividend and append it to 68, then repeat: 689 / 99

Step 7:
The number 99 fits into 689 6 times, leaving a remainder of 95.
Use 6 as the next digit of our solution. 
Result so far: 92036.0
Subtract 594 from 689 to get 95.
Fetch the next digit (1) from the dividend, attach it to 95 and continue: 951 / 99

Moving on to step 8:
951 divided by 99 is 9 with a remainder of 60.
The next digit of our result is 9. 
Result so far: 920369.0
The remainder is 60 after subtracting 891 from 951.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 9:
When dividing 600 by 99, we get 6 with a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 920369.6
Subtracting 594 from 600 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 10:
When dividing 60 by 99, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 920369.6
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
The number 99 fits into 600 6 times, leaving a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 920369.606
If we take 594 away from 600, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 12:
When dividing 60 by 99, we get 0 with a remainder of 60.
The next digit of our result is 0. 
Result so far: 920369.606
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 13:
If we divide 600 by 99, we get 6 and a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 920369.60606
If we take 594 away from 600, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 14:
60 divided by 99 is 0 with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 920369.60606
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 15:
600 divided by 99 is 6 with a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 920369.6060606
Subtracting 594 from 600 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 16:
When dividing 60 by 99, we get 0 with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 920369.6060606
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The quotient of the division is 920369.6060606, and the remainder is 6e-08.